It was -3 Celsius sunset. At sunset next morning, it was -7 Celsius. Which exspression gives the temperature change from sunset to sunrise? A. -3 - (-7) or B. -7 - (-3)
No links or fake answers. I'm so bad at deciding which number goes where -_-

Simplify. −4x^2 (5x^4−3x^2+x−2) −20x^6−12x^4+8x^3−8x^2 −20x^6+12x^4−4x^3+8x^2 −20x^8+12x^4−4x^2+8x −20x^6+12x^4+4x^3−8x^2

Plot the intercepts to graph the equation

Someone answer asap for ! michele pushes a box d meters across a floor. she uses a force f, in newtons, to push the box. she pushes the box for t seconds. the formula p = fd/t calculates the power, p, in watts, that it takes for michele to complete the task. solve the formula for d.